Physics
Scientific paper
Feb 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....97.1303p&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 97, Feb. 1, 1992, p. 1303-1311. Research supported by SNSF and Schellenbe
Physics
16
Shock Wave Propagation, Space Plasmas, Whistlers, Digital Simulation, Plasmasphere, Thermal Plasmas
Scientific paper
It is known from observations in space plasmas and from numerical simulations that under certain conditions, obliquely propagating shocks generate a standing whistler precursor. A one-dimensional electromagnetic implicit particle code is used to investigate its role during the cyclic reformation of quasi-parallel shocks observed in hybrid simulations. It is shown that the precursor grows until a significant number of ions become trapped, at which time the shock ramp reforms near the leading edge of the whistler wave train. Electron inertial effects are found to be rather unimportant for the reformation mechanism, although some electrons are found to be accelerated to suprathermal velocities by the whistler precursor.
Adam Jean-Claude
Héron Anne
Mangeney Andre
Pantellini Filippo G. E.
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